Optical information reader and illumination control method
US9213876B2 · kind B2 · utility
0Cited by
4References
8Claims
0Family size
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Key dates
| Filing date | Oct 9, 2014 |
| Grant date | Dec 15, 2015 |
| Priority date | — |
| Expiry date | Oct 9, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10752
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a barcode reader, a sensor controller sets time of one frame of a line image sensor based on output time necessary for data output of one frame from the line image sensor and lighting time of an LED. A light source controller performs first lighting control to turn on the LED only for the lighting time after termination of the data output within the time of one frame, and second lighting control to turn on the LED only for the lighting time so as to include the entire period of the data output within the time of one frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.